An electrical connector includes an insulating body and multiple terminals. The insulating body has multiple terminal holes running through an upper surface and a lower surface thereof. Each terminal has a connecting portion correspondingly located in a corresponding terminal hole, a conducting portion extending from the connecting portion, an elastic arm formed by bending upward and extending from the connecting portion upward out of the corresponding terminal hole, and a contact portion bending upward and extending from the elastic arm. When a chip module is pressed downward, a bottom surface of each conductive sheet of a circuit board downward abuts a top surface of the contact portion, and the elastic arm deforms downward. The contact portion, the elastic arm, the connecting portion and the conducting portion are integrally formed. A thickness of the connecting portion is greater than a thickness of the contact portion.